"^'iSi!^,i:t" ^MMm in the Uni.

THE GENERAL SUBJECT. 21
supposed new species named by Mr. Gray in the first part of
this work.
HOCKER, J. Ueber die Bastardirung der Vogel. J. f. O. 1870,
p. 152.
Hybrids between Pavo cristatus and Numida meleagris.
MAREY, E. J. Sur le me'canisme du vol des oiseaux. C. R.
1870, pp. 1255-1258.
Contains some more interesting observations on the flight of
birds. (Qf. Zool. Rec. vi. p. 28.)
MARSH, O. C. Notice of some Fossil Birds from the Cretaceous
and Tertiary formations of the United States. Am. J. Sc.
1870, pp. 205-217-
The remains of nine new species of fossil birds, five from the
cretaceous and four from the tertiary formations, are described.
Those from the former belong to extinct and now unrepresented
forms; those from the latter are referred to Puffinus, Catarractes,
Grus, and Graculus.
MARTIN, P. L. Die Praxis der Naturgeschichte. Weimar:
1870. 8vo, pp. 240, pis. vi.
Contains practical hints on the mounting of birds and other
animals, the arrangement of museums, and so forth.
NOLL, F. C. Vogel und Pflanze. Zool. Gart. 1870, pp. 301-
311.
On the agency of birds in the distribution of plants.
PARKER, H. W Carbolizing Birds. Am. J. Sc. 1870, p. 283.
Describes the mode of preserving birds with carbolic acid.
Russ, K. Jahresbericht aus meiner Vogelstube. J. f. O. 1870,
pp. 25-31.
Notes on birds in confinement.
SELENKA, EMIL. Dr. H. G. BRONN'S Klassen und Ordnungen
des Thier-Reichs, wissenschaftlich dargestellt in Wort und
Bild. Sechster Band. IV. Abtheilung. Vogel: Aves.
Lieferungen 3-6. Leipzig und Heidelberg: 1870. 8vo,
pp. 81-144, pis. vii.-xxiv.
This work is continued in the same clear style as that in
which it was commenced {cf. Zool. Rec. vi. p. 30). The four
parts under consideration refer principally to the muscles, the
dissertation on which is introduced by a good account of the
literature relating to these structures. The plates are carefully
drawn, and those illustrating the muscles, being partially
coloured, are especially instructive. [See also